- Location
- Salem, OR
Been searching 62mm and 60mm throttle bodies and I'm getting mixed reviews, I have a throttle body I got for dirt cheap and a shop that will bore it to 60mm for dirt cheap which is awesome till I started looking around, I was thinking on going to 62mm but since this isn't a stroker I read it wasn't necessary, but while reading, I read that the top opening is actually 59mm? And that when boring it out, you should only go from where the butterfly is down or you'll screw up your idle. Is that butterfly only 59mm then? Because I'd like to be 60mm all the way through. Would I need a new butterfly then? Basically is the top half actually 60mm or would having the whole thing bore to 60mm screw things up and if it does, where can I buy a 60mm butterfly?